Body Region: Upper Arm

  • May 2, 2026
    The anterior elbow fat pad space lies within the coronoid and radial fossae of the distal humerus, filled by the…
  • May 2, 2026
    The medial elbow fat pad occupies the olecranon fossa of the distal humerus, visible on lateral X-ray posterior to the…
  • May 2, 2026
    The lateral elbow recess is a synovial extension of the elbow joint capsule in the lateral compartment, adjacent to the…
  • May 2, 2026
    The medial epicondyle groove space is the osseoligamentous tunnel posterior to the medial epicondyle through which the ulnar nerve passes,…
  • May 2, 2026
    The annular ligament recess is a synovial pocket between the annular ligament and the radial neck, inferior to the radial…
  • May 2, 2026
    The lateral elbow compartment encompasses the radiohumeral joint between the radial head and the capitulum, bounded medially by the common…
  • May 2, 2026
    The posterior elbow recess is an extension of the common elbow synovial cavity into the olecranon fossa, accommodating the olecranon…
  • May 2, 2026
    The medial elbow compartment is the ulnohumeral articulation between the trochlear notch of the ulna and the trochlea of the…
  • May 2, 2026
    The radiocapitellar joint provides both elbow stability (resisting valgus forces alongside the MCL) and the proximal pivot of forearm rotation.…
  • May 2, 2026
    The proximal radioulnar joint is the proximal pivot of forearm rotation, where the radial head rotates within the socket of…

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